一段清理缓存的代码如下：
dispatch_async(
dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
, ^{
NSString *cachPath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask, YES) objectAtIndex:0];
NSArray *files = [[NSFileManager defaultManager] subpathsAtPath:cachPath];
NSLog(@"files :%d",[files count]);
for (NSString *p in files) {
NSError *error;
NSString *path = [cachPath stringByAppendingPathComponent:p];
if ([[NSFileManager defaultManager] fileExistsAtPath:path]) {
[[NSFileManager defaultManager] removeItemAtPath:path error:&error];
}
}
[self performSelectorOnMainThread:@selector(clearCacheSuccess) withObject:nilwaitUntilDone:YES];});
-(void)clearCacheSuccess
{
NSLog(@"清理成功");
}
#define kBundleName @"MJRefresh.bundle"
#define kSrcName(file) [kBundleName stringByAppendingPathComponent:file]
调用：[UIImageimageNamed:kSrcName(@"arrow.png")];
创建一个文件夹，后缀名为bundle，图片和一些资源文件可以放里面